PCR Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Precision Thick Film Surface Mounted Resistors

R_Pe_rs_eis_ct_io_sr_is_{on Thick Film}
PSruercfiasicoen TMhiocuknFitlemd Resistors
Make Possible
Welwyn Components
Surface Mounted Resistors
PCR Series
P_•CR_ToSe_lr_eie_rs_{ance down to 0.1%}
• _TE_ox_lc_ee_rall_ne_cn_et_dl_oo_wa_nd_ts_ot₀a_.b₁i_%lity
• ETexcremlleinnat tloioand satvabailliatyble for wire bonding or
T^se^or^lm^dein^raⁱⁿti^gon available for wire bonding or soldering
• Reessiissttaanncecerarnagneg1e0 1oh0moshtmo s1Mtoo1hMmsohms
• ^AAⁿn^yy^rere^sis^si^ts^atⁿa^cn^ec^ve^alv^ua^el^au^ve^aia^lav^ba^leila^wb^itl^heⁱⁿw^spit^eh^ciⁱn^{fied range}
specified range
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
Power rating at 70°C
Resistance range
Limiting element voltage
TCR -55°C to +155°C
TCR +20°C to +70°C
Resistance tolerance
Values
Thermal impedance
Ambient temperature range*
*See Application Notes
watts
ohms
volts
ppm/°C
ppm/°C
%
°C/watt
°C
PCR0805 PCR1005 PCR1206
0.1
0.125
0.25
10R to 1M
100
150
200
100
50
0.1, 0.25, 0.5, 1
E24 & E96 preferred
360
290
200
-55 to 155
Notes
Any value to order
For 10 devices mounted
on a 50 x 25 mm p.c.b. area
Physical Data
Dimensions of standard styles (mm) & Weight (g)
Wrap around
Style
L
W
T
A
B*
0805 2.0 ± 0.3 1.25 ± 0.2 0.6 0.3 ± 0.15 0.9min
1005 2.5 ± 0.3 1.25 ± 0.2 0.7
Not available
1206 3.2 ± 0.4 1.6 ± 0.2 0.7 0.4 ± 0.2 1.7min
planar
C
0.3 ± 0.1
0.4 ± 0.15
0.4 0.15
Wt
0.009
0.015
0.020
A
B
L
A
T
W
Wrap-around terminations
(3 faces)
Alternative styles for surface
mounting resistors
C
C
T
L
W
Planar terminations
*This dimension determines the number of conductors which may pass under the surface mounted device.
Construction
Thick film resistor material, overglaze and organic protection
are screen printed on a 96% alumina substrate.
Adjustment
The components are adjusted to final value using a specially
developed technique, which assures optimum load stability
performance.
Terminations
Planar (or single-sided) termination is gold and suitable for
wire-bonding; wrap around is suitable for soldering.
Solderability
Wrap-around terminations have an electroplated nickel barrier
and solder coating, this ensures excellent ‘leach’ resistance
properties and solderability. They will withstand immersion in
solder at 260°C for 30 seconds.
G_Ge_en_ne_era_ral _lN_Not_oe_te
TWT eElwecytnroCniocsmrpesoenrveenststhresreigrhvet stothmearkieghcht atongmesaiknepcrohdauncgtesspiencipfircoadtiuocntwsipthecoiufitcnaotitoicneworitlhiaobuiltityn.otice or liability.
AAllllininfofromrmataiotinonis issubsujebcjtetcot TtoT WEleecltwroynni’csso’ wownnddaattaaaanndd is connssiiddeerreeddaaccccuurarateteatatimtime eofogfoginogintgo ptorinptr.int.
©^©_TelT_e^W_pT_h^eE_ol^l_ne^w_ec_:t^y₊roⁿ₄n₄^Cic₍₀^os₎^mp₁l₆c^p₇^o₀ⁿ₈^e₂₂ⁿ₁^t₈^s₁^L_·ⁱ_F^m_acⁱ_s^t_i^e_m^d_ile·:
Bedlington, Northumberland NE22 7AA, UK
[phone] · Email: [e-mail]
·
Website:
www.welwyn-tt.com
A subsidiary of
www.ttelect_Tro_Tn_eic_ls_er_ce_ts_ri_ost_no_icrs_s.c_po_lm_c
Issue D · 08.04
07.14
33